Display screen with a graphical user interface



FIG. 1 is a front elevational view of a first image of a graphical user interface showing my new design;

FIG. 2 is a front elevational view of a second image thereof;

FIG. 3 is a front elevational view of a third image thereof; and,

FIG. 4 is a front elevational view of a fourth image thereof.

The appearance of the image transitions sequentially between the images shown in FIGS. 1-4 from FIG. 1 to FIG. 4 or from FIG. 4 to FIG. 1. The process in which an image transitions to another forms no part of the claimed design. The broken line showing of a display panel or screen, and other elements forms no part of the claimed design. 

CLAIM The ornamental design for a display screen with a graphical user interface, as shown and described. 